Skip to main content
9 events
when toggle format what by license comment
Jan 20, 2023 at 21:58 vote accept Majiick
Jan 20, 2023 at 20:36 comment added Majiick eips.ethereum.org/EIPS/eip-1271 Has the motivation and explains the motivation for signing for off-chain order books.
Jan 20, 2023 at 20:34 comment added Majiick The offerer of the order supplies all offered items and must either fulfill the order personally (i.e. msg.sender == offerer) or approve the order via signature (either standard 65-byte EDCSA, 64-byte EIP-2098, or an EIP-1271 isValidSignature check) or by listing the order on-chain (i.e. calling validate). From docs.opensea.io/v2.0/reference/seaport-overview#order Thanks!
Jan 20, 2023 at 18:51 comment added Nal Luksic Actually nft stays with the owner, but you have to give allowance to Opensea, that it can send nfts in your name. So when buyer decides to buy it, he has to send money to opensea router, which transfers it to the nft owner and the nft to the buyer.
Jan 20, 2023 at 17:29 comment added Majiick Ah, so the seller just creates and signs an order and sends it off to OpenSea. Then when an order is to be fulfilled, SeaPort takes the signed order and verifies that the buyer sent off enough eth and transfers the NFT to the buyer?
Jan 20, 2023 at 8:56 comment added Nal Luksic In order to put an item on sale, you only need a signature. This means that the orders are actually stored off-chain. To retrieve order information, you should therefore use Opensea's API: https://docs.opensea.io/v2.0/reference/retrieve-offers
Jan 19, 2023 at 16:19 comment added Majiick Maybe not wyvern but Seaport, as per your ethtx link.
Jan 19, 2023 at 15:51 comment added Majiick Thank you for the answer. Do you know where on the blockchain one can see the sale/buy offers? I know it's using the wyvern contract, but couldn't find a tool to explore that.
Jan 19, 2023 at 9:41 history answered Nal Luksic CC BY-SA 4.0